ChangesInRails30
This page is incomplete
At the moment, it only represents a first pass at sections 4-13.
Once complete, this page is intended to shows changes in Rails 3.0 that affect the sample code in Agile Web Development with Rails, Edition 3. As page numbers in the paper and PDF copies differ, this information is organized first by section number, then it lists both page numbers, paper copy first.
Meanwhile, a live status of an updated Edition 3 scenario (as well as a developing Edition 4 scenario) under various versions of Rails and Ruby is available. Note that page is based on pulling Rails from git (and for 1.8.8 and 1.9.2, Ruby from svn) so it will often reflect failures that will not ever make it in beta or RC form.
Global changes
The names of scripts have changed:
Rails 2.2 | Rails 3.0 |
ruby script/about | rake about |
ruby script/console | rails console |
ruby script/dbconsole | rails dbconsole |
ruby script/destroy | rails destroy |
ruby script/performance/benchmarker | rails benchmarker |
ruby script/performance/profiler | rails profiler |
ruby script/generate | rails generate |
ruby script/plugin | rails plugin |
ruby script/runner | rails runner |
ruby script/server | rails server |
3.0 Installing Rails
- Page 21/32 : Rails now requires Ruby 1.8.7 or later. This particularly affects Windows users as both InstantRails and RubyInstaller bundle Ruby 1.8.6. RubyInstall RC2 development is underway, but for now we can use Cygwin .
4.1 Creating a New Application
- Page 36/45 : After
cd demo
and beforerails server
(was:ruby script/server
), editconfig/routes.rb
, and uncomment the following line:match ':controller(/:action(/:id(.:format)))'
6.1 Getting Something Running
- Page 63/71 : options must now come after the app path, so you would specify mysql as the database as follows:
rails depot --database=mysql
6.3 Adding a Missing Column
- Page 73/81: the
h
’s are no longer present in the template. - Page 74/82: instead of editing
new.html.erb
andedit.html.erb
files, edit_form.html.erb
. Instead of a<p>
tag, you will see<div class="field">
- Page 75/83: the
h
’s are no longer present in the template. - Page 76/84: instead of deleting the
h
, add the wordraw
.
7.1 Creating the Catalog Listing
- Page 87/95 : Edit
config/routes.rb
, and uncomment the following line, and then restart the server:match ':controller(/:action(/:id(.:format)))'
- Page 89/97 : remove the
h
beforeproduct.title
, addraw
beforeproduct.description
8.1 Sessions
- Page 99/107: the line to uncomment in environment.rb now looks as follows:
ActionController::Base.session_store = :active_record_store
- Page 100/107: The setup is now done in config/initializers/session_store.rb
- Page 100/108: there no longer is a need to uncomment out the :secret parameter in application.rb (which is now named application_controller.rb)
9.2 Iteration D2: Creating an Ajax-Based Car
- Page 123/130: change line containing
form_remote_tag :url=>...
to:<% form_tag({:action=>'add_to_cart', :id=>product}, :remote=>true) do %>
11.1 Iteration F1: Adding Users
- Page 158/164: The preferred way to order the users returned in the index is now:
@users = User.order(:name)
- Page 159/165: Instead of a separate line assigning
flash[:notice]
, there now is a:notice
parameter on theformat.html
call. - Page 160/166: The form can now be found in
app/views/users/_form.html.erb
11.3 Iteration F3: Limiting Access
- Page 166/172: application.rb is now application_controller.rb
11.4 Iteration F4: A Sidebar, More Administration
- Page 168/174: application.rb is now application_controller.rb
13.1 Iteration I1: Enabling Translation
- Page 187/193: omit the setting of
LOCALES_DIRECTORY
(alternately, useRails.root
instead of RAILS_ROOT). - Page 190/196: application.rb is now application_controller.rb
- Page 199/205: es.activerecord.errors.template becomes es.errors.template:
- Insert line ” errors:” before ” activerecord:”
- Move 5 lines starting with “template:” through “other:” before “activerecord:”, unindenting by two characters
- Page 200/205: error messages are double escaped. Bug 2409
14.2 Unit Testing of Models
- Page 209/214: lines of the form
product.errors.invalid?(:title)
need to be changed toproduct.errors[:title].any?
14.3 Functional Testing of Controllers
- Page 221/226: application.rb is now application_controller.rb
16.2 Enumerations and Arrays
- Page 273/277: :skip_last_comma has been deprecated. Use :last_word_connector instead.
16.9 Unicode support
- Page 283/287: name.chars.reverse is now name.mb_chars.reverse
- Page 284/288: person.name.chars is now person.name.mb_chars (twice on this page)
21.2 Routing Requests
- Page 424/428: add the following as the first action after starting script/console:
ActionController::Base.session_store = nil
- Page 431/436: some of these examples return
/blog/show_date?...
instead
21.4 Testing Routing
- Page 455/459: the excerpt in the book doesn’t show it, but if you download routing_conditions_test.rb and wish to execute it, you will need to add
require "config/routes_with_conditions.rb"
to the beginning ofconfig/routes.rb
. After this is done, you can remove the setup method entirely fromRoutingTest
as it is unnecessary.
23.3 Helpers for Formatting, Linking, and Pagination
- Page 518/521: A new version of the will_paginate gem is required, and the installation instructions have changed:
- add
gem 'will_paginate', '>= 3.0.pre'
toGemfile
- execute
bundler install
- add
23.11 Adding New Templating Systems
- Page 557/560: Updated rdoc_template that works with Rails 3.0.
- Page 558/560: application.rb is now application_controller.rb
- Page 558/561: you will also need to add
gem 'rdoc'
to yourGemfile
- Page 559/563: Updated eval_template that works with Rails 3.0.
25.1 Sending E-mail
- Page 611/613 :
confirm.erb
can now be found inconfirm.text.erb
- Page 612/614 :
order_mailer.rb
can now be found in theapp/mailer
directory (this change also applies to the next page)_line_item.erb
should now be named_line_item.text.erb
- Page 614/616 :
sent.erb
should now be namedsent.html.erb
. Additionally, remove thesent.text.erb
that was generated.- change
render(:partial => "html_line_item")
torender(:partial => "line_item")
25.3 Testing E-mail
- Page 621/623: replace the following files:
- test/unit/order_mailer_test.rb (to be placed in the
test/functional
directory) - test/fixtures/order_mailer/sent
- test/fixtures/order_mailer/confirm
- test/unit/order_mailer_test.rb (to be placed in the
26.2 Show Me the Code!
- Page 626/628 : After
cd depot_client
, editconfig/routes.rb
, and uncomment the following line:match ':controller(/:action(/:id(.:format)))'
- Page 628/630: application.rb is now application_controller.rb
26.3 Relationships and Collections
- Page 630/632: the config/routes.rb line now needs to look like this:
resources(:orders) { resources :line_items }
Page History
- V88: costy [about 1 year ago]
- V87: costy [about 1 year ago]
- V85: Ilona Vaenga [about 2 years ago]
- V86: System [about 2 years ago]
- V84: eric tenne [over 2 years ago]
- V83: Ellie @ Support [over 4 years ago]
- V84: Ellie @ Support [over 4 years ago]
- V84: Ellie @ Support [almost 5 years ago]
- V125: Ellie @ Support [almost 5 years ago]
- V118: System [almost 5 years ago]